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Article #15210Re: Flywheel batteries as EV power source
From: Bob Blackshaw
Date: Wed, 23 Dec 1992 20:54
Date: Wed, 23 Dec 1992 20:54
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In <72196@cup.portal.com> lordSnooty@cup.portal.com (Andrew - Palfreyman) writes: >I wrote: >>Re. the exploding flywheel: I was mulling on flash-filling the >>cavity with thick-setting foam, but I imagine that the response >>time is way too long compared with the split of the wheel. >>Comments? >Lydick: >: Even if the response time weren't too long, this "foam" would merely be yet >: another thing for the flywheel fragments to vaporize, and would almost >: certainly only exacerbate the problem. Why do so many people have so little >: grasp of the amount of energy we're talking about, here? >Arrogant prating becomes you, sweetie. Nice to see a preacher here 'bouts. >The largest difference, in any case, between the "exploding gasoline" >scenarios and the broken flywheel is not the energy but the instantaneous >power - probably between 8 and 10 orders, depending. >The energy dissipation within the volume of the container tends to zero >for a vacuum; most of it occurs at the container walls. If one could >spread out the volume of energy dissipation, the chances of containment >are concomitantly higher. Despite this fact, I don't *really* think foam >is going to do it. > -------------------------------------------------------------------------- >| lord snooty @the giant | Would You Like Space Potatoes With That? | >| poisoned electric head | andrew_-_palfreyman@cup.portal.com | > -------------------------------------------------------------------------- If it is any help, the last issue of IEEE Spectrum was all about EVs. As I recall, there was an article on batteries which discussed work in progress on flywheel batteries. It might help the discussion to look it up. Bob
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<1992Dec13.114534.961@cmkrnl.com> <1992Dec15.004956.465@mtu.edu> <1992Dec15.194558.2556@adobe.com>, <1992Dec16.192456.6261@news.cs.brandeis.edu> <1goebdINNik@gap.caltech.edu>,<1992Dec17.035214.15058@u.washington.edu> <1gov35INNik@gap.caltech.edu> <1992Dec17.170002.28389@u.washington.edu> <1h2vvbINNfm0@gap.caltech.edu> <72196@cup.portal.com>Show Full Headers
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Newsgroups: sci.electronics,sci.energy,rec.autos.tech Path: arc1-ca.pugleaf.net!sparky!uunet!paladin.american.edu!darwin.sura.net!cos!cos!bob1 From: bob1@cos.com (Bob Blackshaw) Subject: Re: Flywheel batteries as EV power source Message-ID: <bob1.725144045@cos> Organization: Corporation for Open Systems References: <1992Dec13.114534.961@cmkrnl.com> <1992Dec15.004956.465@mtu.edu> <1992Dec15.194558.2556@adobe.com>, <1992Dec16.192456.6261@news.cs.brandeis.edu> <1goebdINNik@gap.caltech.edu>,<1992Dec17.035214.15058@u.washington.edu> <1gov35INNik@gap.caltech.edu> <1992Dec17.170002.28389@u.washington.edu> <1h2vvbINNfm0@gap.caltech.edu> <72196@cup.portal.com> Date: Wed, 23 Dec 1992 20:54:05 GMT Lines: 36